40004000443 has 8 divisors (see below), whose sum is σ = 43662009456. Its totient is φ = 36349538400.

The previous prime is 40004000431. The next prime is 40004000459. The reversal of 40004000443 is 34400040004.

40004000443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40004000443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40004000443.

It is not an unprimeable number, because it can be changed into a prime (40004000473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863128 + ... + 908293.

It is an arithmetic number, because the mean of its divisors is an integer number (5457751182).

Almost surely, 2^40004000443 is an apocalyptic number.

40004000443 is a deficient number, since it is larger than the sum of its proper divisors (3658009013).

40004000443 is a wasteful number, since it uses less digits than its factorization.

40004000443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773485.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 40004000443 its reverse (34400040004), we get a palindrome (74404040447).

The spelling of 40004000443 in words is "forty billion, four million, four hundred forty-three", and thus it is an aban number.